(1) First check the oil level of the tank, if the oil-free or oil level is too low, should be added. After the oil level is added, the oil pump is filled with oil, and open the discharge screw on the diesel filter of the serial diesel filter. Check if there is air in the oil road. If there is a clean. If the air rins is not net, you should check whether the tubing joint is loose and the tubing is not broken. When checking the joint and suspected the pipeline rupture, then The pump oil pump is observed by the oil pump, and if there is a diesel, it will be made loose or ruptured. (2) Pump oil with an oil pump, if the oil is not smooth, indicating that there is a blockage in the low pressure oil, and should be checked. Separator (Filter). Diesel filters and pipelines. In particular, it should be checked whether the metal filter in the oil-water separator is blocked. (3) Pump oil with a hand oil, and open the tightening screw on the diesel filter, check whether there is a water bead in diesel. If there is a water droplet, the oil in the fuel tank should be removed, and the qualified diesel will be re-added. (4) When the oil pump is pumped with the oil pump, it feels no effort, the pump oil will not have oil multiple times, that is, the hand-filled pump piston is too much, or the valve is contaminated, or the wear is severe and sealed. Should be repaired or replaced Hand oil pump, if there is elasticity and resistance when pump oil, it is very fast when the handle is pressed, and the handle can be automatically returned, indicating that the oil pump is in the oil tube to block the oil tank. At this point, the fuel tank is Oil water separator, all of the oil supply pump line replace it into a transparent pressure-resistant plastic tube, which is very clear to oil flow and blocking. In addition, the oil-proof pump cover is not good, and the oil pump pump is poor. (5) Through the above examination, if everything is normal, it should be checked for the working conditions of the fuel injection pump. If the transmission gear is loose, whether the injector advance angle changes, the coupling fixing the bolt is loose. If the engine fuel injection pump is rotated, The oil pump high pressure tube joint should be disassembled, and the starter is driven by the starter, and the throttle is increased. If the fuel injection pump oil pipe joints are free, there is no oil flowing out, check and check the injection pump. Test the injection pump should be on the oil pump test Perform, corrected according to standards. If the fuel injection pump checks, the injector is normal, still can't start, should be removed, the injector, check the injection pressure, the nozzle atomization, if the atomization is poor, it will cause The engine is difficult to start.
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